Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm

Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm

Brand:| Model: GW-S525/8
Overview
These silver polymer cone woofers feature a cosmetic stamped steel frame, vented and bumped back plate, and high-quality rubber surround. The relatively shallow profile, polymer construction, and T/S parameters make them great for automotive environments.
Part # 
290-302
Weight: 1.6 lbs.  
IN STOCK
Your Price
$13.75
Buy 4-up$11.92
Part # 290-302
Qty:  EA
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Product Details

Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm

These silver polymer cone woofers feature a cosmetic stamped steel frame, vented and bumped back plate, and high-quality rubber surround. The relatively shallow profile, polymer construction, and T/S parameters make them great for automotive environments.



Product Specifications
  • Nominal Diameter5-1/2"
  • Power Handling (RMS)70 Watts
  • Power Handling (max)130 Watts
  • Impedance8 ohms
  • Frequency Response50 to 5,500 Hz
  • Sensitivity84.7 dB 2.83V/1m
  • Voice Coil Diameter1"
  • Magnet Weight15 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)81.1 Hz
  • DC Resistance (Re)7 ohms
  • Voice Coil Inductance (Le)0.4 mH
  • Mechanical Q (Qms)2.87
  • Electromagnetic Q (Qes)1.18
  • Total Q (Qts)0.84
  • Compliance Equivalent Volume (Vas)0.13 ft.³
  • Mechanical Compliance of Suspension (Cms)0.4 mm/N
  • BL Product (BL)5.41 Tm
  • Diaphragm Mass Inc. Airload (Mms)9.7g
  • Maximum Linear Excursion (Xmax)2 mm
  • Surface Area of Cone (Sd)82.29 cm²
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter5.625"
  • Baffle Cutout Diameter4.56"
  • Depth2.5"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.21 ft.³
  • Sealed F388 Hz
  • Vented Volume0.55 ft.³
  • Vented F348 Hz
  • * Enclosure volume/F3s based on BassBox "optimum" calculations-
Optimum Cabinet Size *
  • Sealed Volume0.21 ft.³
  • Sealed F388 Hz
  • Vented Volume0.55 ft.³
  • Vented F348 Hz
  • * Enclosure volume/F3s based on BassBox "optimum" calculations-
Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm
  • BrandGoldwood
  • ModelGW-S525/8
  • Part Number290-302
  • UPC643420100501
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (8 Reviews)
  • Weight1.6 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm
Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm is rated 3.75 out of 5 by 8.
Rated 1 out of 5 by from Cheap for a reasonTruthfully terrible.I bought four of these to replace the rear woofers in my 1997 BMW 740il. As soon as I installed these, I rushed to get them out. They don't cover one third of the frequencies the factory woofers put out and sound foul. Almost no bass and the bass that came out of them sounded distorted. Re-installed the factory woofers and threw these back in the box. Don't waste your money...even if it is not alot.
Date published: 2013-10-10
Rated 5 out of 5 by from Great sound from a small SUBWOOFERI found these subwoofers through reading an Automotive Forum.My stocks factory ones were old and did not sound good.I ordered 4 of these Goldwood 1/4 8 ohm subwoofers, at an amazing price, I thought I can give them a try while looking for my used or refurbished stock ones, since dealer wants $100 a peace. I finally received these and installed them right away,Amazing sound for the $! I am keeping these in the car.The staff at Parts Express is Great, Tech support, via E-mailWas great! I am in California, so it took a few days to deliver,Next order I will use quicker shipment..I already recommended this Company and the product to friends Family and BMW forum members!Thank You.
Date published: 2014-03-18
Rated 4 out of 5 by from good little wooferthese are very good for how cheap they are. I found excellent response in them, and put two of them plus one tweeter in plastic tubes for surround sound. When I bought them I had no expectations and thought I could just play them to death cus I don't care if they blow. But I am happy with how they came out and they sound decent.
Date published: 2013-03-09
Rated 5 out of 5 by from goldwoodi am using this speaker to replace the 5 1/4" JBL SPEAKER.IT IS A EFECIENT repacement.the sound is very clear.
Date published: 2013-03-09
Rated 5 out of 5 by from Just one more review!I have to tell you, I can't stop listening to these speakers! They sound so good! Like I said before these have a great range in sound, the highs come through very well making them perfect for a full range speaker, well at least that's what my ears tell me! I am going to buy more! Oh and the bass response isn't the best but I could care less cause I didn't buy it for ear shattering bass!
Date published: 2013-03-09
Rated 5 out of 5 by from This is the loudest 5 1/4" woofer I've ever heard!I just got a pair of these woofers today. I wasn't expecting any high performance quality out of these but when I tested one of the two I was stunned by how loud and clear this woofer is at only 10 watts! These look very nice, the magnet is fairly large for such a small speaker. The x-max is very low meaning the cone won't move a ton but the loudness makes up for because it doesn't take much to get these to scream! Now I did play with the one woofer without a box and it was loud, but I am curious as to how loud this bad boy will be when I put it in a box! The frequency range is really good to, the high's come through a little faint but add a tweeter to it and it'll sound even better. Overally very impressive speacially when these only cost $9.50 each! I do think these would work well as a woofer, midrange, or a full range speaker. I will try this out as a mid and see how it performs.
Date published: 2013-03-09

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Goldwood GW-S525/8 5-1/4" Poly Cone Woofer 8 Ohm

How is the 5-1/4" size measured? I'm not sure if it's the correct size I need.

Asked by: Helson351
A speaker size is measured by the overall frame diameter of the speaker. 5-1/4" is just a size catagory for this woofer, it actually measures 5-5/8" across the frame. The specific dimensions are listed in the description for all of our woofers.
Answered by: MattP
Date published: 2013-02-26

will these work as a replacement for the four rear deck subs in a 1997 bmw 740 il?

Asked by: rayp72
The BMW calls for 5-1/4" speakers, although these Goldwoods actually measure closer to 6". If they fit the stock cutouts, new mounting holes may need to be drilled.
Answered by: MattP
Date published: 2014-03-18

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